html{
	height:100%;
	overflow:hidden;
}
body{
   font: 2.2em 'Segoe UI Light',Segoe UI,Helvetica Light,Tahoma Light,Arial Light,sans-serif;
   font-weight: lighter;
   margin:0px;
   padding:0px;
   height:100%;
}
header{
    width: 150px;
    cursor:pointer;
    color:#2E8BCC;
    transition: color 0.3s ease-in;
}
header:hover{
    color:red;
}
footer{
    position:absolute;
    bottom:10px;
    width:100%;
    text-align: center;
    color:#6a747e;
    font: 0.5em 'Segoe UI Light',Segoe UI,Helvetica Light,Tahoma Light,Arial Light,Helvetica Light,sans-serif;
    font-weight: lighter;
}
#nav{
 margin-top: 3px;  
}
ul{
    list-style-type: none;
}
li{
    height: 50px;
    text-align: center;
    padding-top: 0px;
    padding-left: 0px;
    float:left;
    width:100px;
    cursor:pointer;
   /* border-width: 5px;
    border-color:pink;
    border-style: solid;
    */
    margin-right: 6px;
    margin-top: 5px;
    background-color: #3b5998;
    transition: background-color 0.5s;
   -moz-transition:background-color 0.5s;
   -webkit-transition: background-color 0.5s;
   -o-transition: background-color 0.5s; 
}
li:hover{
    background-color:#FF9009;
}
span{
    cursor: pointer;
    vertical-align: middle;
    color:white;
    font-size:15px;
    transition: font-size 0.1s,color 0.5s;
   -moz-transition:font-size 0.1s,color 0.5s;
   -webkit-transition: font-size 0.1s,color 0.5s;
   -o-transition: font-size 0.1s,color 0.5s;
}/*
.label{
   
}
.label:hover{
   
}*/
#body{
    font-size:18px;
    position:absolute;
    left:30px;
    width:60%;
    height:60%;
    background-color: red;
    border-color: pink;
    border-style: solid;
    border-radius: 2px;
    border-width: thick;
    color:white;
    overflow: auto;
}
#nav_element1_body{
    padding-left: 4px;
}
#nav_element2_body{
    padding-left: 4px;
}
#close_body{
  /*  background-image: ;*/
    width:22px;
    height:22px;
    cursor: pointer;
    position:absolute;
    left:61.5%;
    margin-top: -22px;
    background: url(../img/display/filter-menu-sprite.png) 0% 65% no-repeat;
}
#close_body:hover{
   background: url(../img/display/filter-menu-sprite.png) 0% 100% no-repeat;
}
#box_arrow{
position:absolute;
top:93px;
/*left:70px;*/
border-color: transparent transparent pink transparent;
border-style:solid;
border-width:20px;
width:0px;
height:0;
z-index:3;
}
#universe{
    width:100%;
    height:100%;
   /* background: url(../img/display/b.png);*/
}
#pic{
    display:none;
    width:100px;
    height:100px;
    position:absolute;
    left:50%;
    top:0px;
    -webkit-box-shadow: #000 0 2px 20px;
    -moz-box-shadow: #000 0 2px 20px;
    box-shadow: #000 0 2px 20px;	
    border-radius:5px;
    transition:display 0.5s;
    -moz-transition: display 0.5s;
    -webkit-transition: display 0.5s;
    -o-transition:display 0.5s;
}
#pic.about{
    display:block;
    background-image:url(../img/display/about.png);
    background-size:cover;
    background-repeat: no-repeat;
}
#pic.control{
    display:block;
    background-image:url(../img/display/game.png);
    background-repeat: no-repeat;
    background-size:cover;
}
#pic.contact{
    display:block;
    background-image: url(../img/display/collaboration.png);
    background-color: red;
    background-size: contain;
    background-repeat: no-repeat;
}
#pic.demo{
    display:block;
    background-image: url(../img/display/brackets_center.png);
    background-color: #6666ff;
    background-size: contain;
    background-repeat: no-repeat;
}
